The source seems credible, but until you hear anything from Infinity Ward I would take this with a grain of salt. The original Call of Duty: Ghosts, also made by Infinity Ward, was a forgettable entry and was made during a tough period for the developer. A sequel to Ghosts may not get fans excited at first, but it is sure to be better than its predecessor.
Again, until we hear something a little more official then we can only speculate. Until then, what are your thoughts on Call of Duty: Ghosts 2? Surely, Infinity Ward would like to return to Modern Warfare level success but that is easier said than done. It remains to be seen if Ghosts 2 will be able to get them there.